`npm run build` fails for cerebral-todomvc

System: Debian GNU/Linux 8.6 (jessie). Linux version: 4.7.0-0.bpo.1-amd64 Node version: 6.9.1 npm version: 3.10.8 react-scripts version: 0.7.0

Just made a fresh clone of the Cerebral repo and ran npm install and npm run setup which gives me the following error message:

pacha@xibalba:~/web/cerebral/cerebral$ npm run setup

> cerebral-monorepo@0.0.0 setup /home/pacha/web/cerebral/cerebral
> lerna bootstrap

Lerna v2.0.0-beta.30
Independent Versioning Mode
Bootstrapping 11 packages
Installing external dependencies
Symlinking packages and binaries
Prepublishing packages
Errored while running BootstrapCommand.execute
Error: Command failed: npm run prepublish 

npm ERR! Linux 4.7.0-0.bpo.1-amd64
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "run" "build"
npm ERR! node v6.9.1
npm ERR! npm  v3.10.8
npm ERR! code ELIFECYCLE
npm ERR! cerebral-todomvc@0.2.0 build: `react-scripts build`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the cerebral-todomvc@0.2.0 build script 'react-scripts build'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the cerebral-todomvc package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     react-scripts build
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs cerebral-todomvc
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls cerebral-todomvc
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/pacha/web/cerebral/cerebral/packages/cerebral-todomvc/npm-debug.log

npm ERR! Linux 4.7.0-0.bpo.1-amd64
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "run" "prepublish"
npm ERR! node v6.9.1
npm ERR! npm  v3.10.8
npm ERR! code ELIFECYCLE
npm ERR! cerebral-todomvc@0.2.0 prepublish: `npm run build`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the cerebral-todomvc@0.2.0 prepublish script 'npm run build'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the cerebral-todomvc package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     npm run build
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs cerebral-todomvc
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls cerebral-todomvc
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/pacha/web/cerebral/cerebral/packages/cerebral-todomvc/npm-debug.log

    at ChildProcess.exithandler (child_process.js:206:12)
    at emitTwo (events.js:106:13)
    at ChildProcess.emit (events.js:191:7)
    at maybeClose (internal/child_process.js:877:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)

npm ERR! Linux 4.7.0-0.bpo.1-amd64
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "run" "setup"
npm ERR! node v6.9.1
npm ERR! npm  v3.10.8
npm ERR! code ELIFECYCLE
npm ERR! cerebral-monorepo@0.0.0 setup: `lerna bootstrap`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the cerebral-monorepo@0.0.0 setup script 'lerna bootstrap'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the cerebral-monorepo package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     lerna bootstrap
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs cerebral-monorepo
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls cerebral-monorepo
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/pacha/web/cerebral/cerebral/npm-debug.log

When running npm run build in the packages/cerebral-todomvc directory, I get:

pacha@xibalba:~/web/cerebral/cerebral/packages/cerebral-todomvc$ npm run build

> cerebral-todomvc@0.2.0 build /home/pacha/web/cerebral/cerebral/packages/cerebral-todomvc
> react-scripts build

Creating an optimized production build...
Failed to compile.

static/js/main.b4f163eb.js from UglifyJs
Unexpected character '`' [/usr/lib/nodejs/events.js:260,0]


npm ERR! Linux 4.7.0-0.bpo.1-amd64
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "run" "build"
npm ERR! node v6.9.1
npm ERR! npm  v3.10.8
npm ERR! code ELIFECYCLE
npm ERR! cerebral-todomvc@0.2.0 build: `react-scripts build`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the cerebral-todomvc@0.2.0 build script 'react-scripts build'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the cerebral-todomvc package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     react-scripts build
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs cerebral-todomvc
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls cerebral-todomvc
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/pacha/web/cerebral/cerebral/packages/cerebral-todomvc/npm-debug.log

[henri-hulski]

@Guria I found the issue. cerebral/addressbar also requires EventEmitter and gets imported by the router. When replacing the emitter with eventemitter3 in cerebral, function-tree and addressbar everything works well.

@christianalfoni Should I make PRs for cerebral and addressbar and do you have any preferences which emitter to use?

BTW There is now an issue about EventEmitter on CRA: facebookincubator/create-react-app#1023

[Guria]

yes, it’s a npm built in behaviour